In this design, the single chip sel

在本设计中，单片机从MCS-％系列产品中选择80C196KCo，这特别适合于具有较高要求的实时控制场合。目前，它已成功应用于汽车，例如点火和燃料控制[[ <br>52，53，55 ] CHMOS芯片消耗的功率更少，除了正常运行外还可以在两种节能模式下工作：待机模式和功率向下模式，进一步降低了芯片的功耗。MC-196家族的所有成员都享受一套命令系统，并且有一个通用的CPU组织结构。根据不同的应用场合，曾经被视为“外围设备”的各种电路被“嵌入”在MCU内部，因此形成了各种类型的MCU。<br>8OC196KC的内部EPROM / ROM为8K字节，内部RAM为232字节。两者都可以用作通用寄存器。添加24字节特殊寄存器等效于256字节内部寄存器。在ABS主控制系统设计的软件编译中，它充分利用了其内部通用寄存器。由于ABS是实时控制，并且整个制动过程必须在几秒钟内完成，因此需要很长时间。通过分析所需的收集数据，发现几个参数的分布相对集中，仅需将每种类型的参数的维数扩展100倍，并将其放入通用寄存器进行分析和计算即可。该算法更加简洁，实时响应速度更快，更合理。<br>在实际应用中，汽车同时输入四个车轮速度信号，并且数字控制器中的计数器不足，因此需要扩展8253芯片。8253具有三个功能相同的16位递减计数器。每个计数器的工作模式和计数常数通过软件编程选择。这样，在程序初始化时，将设置计数位置的值和模式控制字。在中断服务程序中，可以同时读取四个轮速信号，因为每个指令花费的时间非常短（以微秒为单位），相对于中断时间（通常为数十毫秒）几乎可以忽略不计。因此，使用该方法可以实现四轮信号的同步速度测量。<br>本文的主要控制软件程序流程主要是基于HSO生成软件定时器中断的思想。首先确定中断向量：GSEG AT 200AH; 定时器T1作为系统实时时钟源，每8个状态周期，其计数值加1，每个时间间隔计数一次（8M晶体）：假设中断时间为T，则中断时间的初始值

In this design, the single chip selects 80C196KCo from MCS-% series products, which is especially suitable for the real-time control occasions with high requirements. At present, it has been successfully applied to automobiles, such as ignition and fuel control [[52, 53, 55]<br>The CHMOS chip consumes less power and can work in two power-saving modes in addition to normal operation: standby mode and power-down mode, which further reduces the power consumption of the chip. All members of the MC-196 family enjoy a set of command system, There is a common CPU organizational structure. According to different application occasions, various circuits that used to be considered as "peripheral devices" were "embedded" inside the MCU, so various types of MCUs were formed.<br>The internal EPROM / ROM of 8OC196KC is 8K bytes, and the internal RAM is 232 bytes. Both can be used as general-purpose registers. Adding 24-byte special registers is equivalent to 256 bytes of internal registers. In the software compilation of ABS's main control system design, it makes full use of its internal general registers. Because ABS is a real-time control, and the entire braking process must be completed in just a few seconds, it requires very high time; by analyzing the required collected data, it is found that the distribution of several parameters is relatively concentrated, only It is necessary to expand the dimension of each type of parameter by 100 times and put it into the general register for analysis and calculation. The algorithm is more concise, the real-time response speed is faster and more reasonable.<br>In practical applications, the car has four wheel speed signals input at the same time, and there are not enough counters in the digital controller, so an 8253 chip needs to be expanded. 8253 has three 16-bit down counters with the same function. The working mode and counting constant of each counter are selected by software programming. In this way, when the program is initialized, the value of the counting position and the mode control word are set. In the interrupt service program, four wheel speed signals can be read at the same time, because each instruction takes very short time (in microseconds) Relative to the interruption time (generally tens of milliseconds) is almost negligible. Therefore, using this method can achieve synchronous speed measurement of the four-wheel signal.<br>The main control software program flow of this article is mainly based on the idea of ​​HSO generating software timer interrupt. First determine the interrupt vector: GSEG AT 200AH; Timer T1 as the system real-time clock source, every 8 state cycles, its count value increases by 1, each time interval counted (8M crystal) :; Assume the interrupt time is T , Then the initial value of the interruption time

在本设计中，单片机选用MCS-%系列产品中的80C196KCo，特别适用于要求较高的实时控制场合。目前已成功应用于汽车点火、燃油控制等领域<br>CHMOS芯片功耗较低，除了正常工作外，还可以在待机模式和掉电模式下工作，进一步降低了芯片的功耗。MC-196家族所有成员都享有一套指挥系统，有一套通用的CPU组织结构。根据不同的应用场合，在MCU内部“嵌入”了以前被认为是“外围设备”的各种电路，形成了各种类型的MCU。<br>8OC196KC的内部EPROM/ROM为8K字节，内部RAM为232字节。两者都可用作通用寄存器。添加24字节的特殊寄存器相当于256字节的内部寄存器。在ABS主控系统设计的软件编制中，充分利用了其内部通用寄存器。由于ABS是一种实时控制，整个制动过程只需几秒钟就可以完成，时间要求非常高，通过对采集到的数据进行分析，发现几个参数的分布比较集中，只需将每一类参数的维数扩大100倍，就可以实现对制动过程的实时控制将其放入通用寄存器进行分析和计算。算法更加简洁，实时响应速度更快、更合理。<br>在实际应用中，该车同时输入四个轮速信号，而数字控制器中没有足够的计数器，因此需要扩充8253芯片。8253有三个具有相同功能的16位向下计数器。通过软件编程选择各计数器的工作方式和计数常数。这样，当程序初始化时，计数位置和模式控制字的值被设置。在中断服务程序中，四轮转速信号可以同时读取，因为相对于中断时间（通常是几十毫秒）几乎可以忽略不计，每条指令花费的时间非常短（微秒）。因此，利用该方法可以实现四轮信号的同步测速。<br>本文的主控软件程序流程主要是基于HSO产生软件定时器中断的思想。首先确定中断矢量：GSEG为200AH；定时器T1为系统实时时钟源，每8个状态周期，其计数值增加1，每间隔计数（8M晶体）：；假设中断时间为T，则中断时间的初始值为<br>